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From: Dario Abdul on 17 Jun 2010 21:27
When I export a figure to PDF or EPS the resulting file has all the colors messed up like this: http://imgur.com/FNib4

If I export it in PNG it looks as it should: http://imgur.com/7P9dJ

Is this some bug in MATLAB's export function?
I also tried the export_fig.m alternative but I get the same problems.

Thanks.
From: Oliver Woodford on 18 Jun 2010 04:37
"Dario Abdul" <dario.rehman(a)gmail.com> wrote in message <hvei17$k4q$1(a)fred.mathworks.com>...
> When I export a figure to PDF or EPS the resulting file has all the colors messed up like this: http://imgur.com/FNib4
>
> If I export it in PNG it looks as it should: http://imgur.com/7P9dJ
>
> Is this some bug in MATLAB's export function?
> I also tried the export_fig.m alternative but I get the same problems.
>
> Thanks.

Hi Dario

If you do:
set(gcf, 'Renderer', 'painters');
do you see the problem on the on screen figure?

If so it is because (I'm surmising here) when using opengl to render, the colors of each patch are interpolated from the corners, whereas with painters the value (not the color) is interpolated, and the color is then assigned according to the interpolated value and the colormap. Vector outputs must be exported using the painters renderer.

As a rule, if you want to export to pdf make sure the figure looks correct on screen when using the painters renderer.

HTH,
Oliver
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